A pendulum seen from above, its swing slowly turning with the Earth and drawing a rosette in the sand.
A pendulum seen from above, its swing slowly turning with the Earth and drawing a rosette in the sand.
In the app you can adjust the turning speed. It runs natively on your Mac, drawn live in real time – no video, never quite the same twice.
Use it on your Mac
- Get SCRNSVRS free from the Mac App Store.
- Select Foucault Pendulum in the library.
- Click Set as Screensaver or Set as Wallpaper – or both.
Preview free · macOS Tahoe 26 or laterNeed a hand? Read the setup guide.
Foucault Pendulum FAQ
How do I set Foucault Pendulum as my screensaver on a Mac?
Install SCRNSVRS free from the Mac App Store, select Foucault Pendulum in the library and click Set as Screensaver. macOS starts it whenever your Mac is idle, exactly like a built-in screensaver.
Can I use Foucault Pendulum as a live wallpaper?
Yes. Click Set as Wallpaper in SCRNSVRS and Foucault Pendulum plays on your desktop behind your windows and icons. You can use it as screensaver and wallpaper at the same time.
Is Foucault Pendulum free?
Foucault Pendulum is included in SCRNSVRS Unlimited. It's free for your first 7 days; after that Unlimited is $1.99/month or $9.99/year (€1.99/month or €9.99/year) for every screensaver, including new ones. It can also come up in Free this month, when 25 premium screensavers are free for everyone.
Is Foucault Pendulum a video loop?
No. Foucault Pendulum is rendered live on your Mac with Metal, so it never repeats and stays sharp on any display size. The clip on this page is a screen recording of the real thing.
Will Foucault Pendulum slow down my Mac or drain the battery?
No. SCRNSVRS drops to 30 fps on battery and stops rendering when the wallpaper is covered by a full-screen app, so Foucault Pendulum costs next to nothing in everyday use.
Which Macs does Foucault Pendulum run on?
Foucault Pendulum needs macOS Tahoe 26 or later.
